Automatic groove-cutting machine for wooden shoe-soles.



No. 861,084. PATENTED JULY 23, 1907. H. BUSSE & W. SGHOU. v AUTOMATIG GROOVE CUTTING MACHINE FOR WOODEN SHOE SOLES.

APPLIOATIFON FILED MAB. 7, 1905.

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No. 861,084. v PATENTED JULY 23, 1907;

' H. BUSSE & w. SGHOU.

AUTOMATIC GROOVE CUTTING MACHINE FOR WOODEN SHOE SDI-BS.

APPLICATION FILED MAB. 7. 1905.

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HERMAN BUSSE, OF BERLIN, GERMANY, AND WlLLIAM SCHOU, OF COPENHAGEN, DENMARK.

AUTOMATIC GROOVE-CUTTING MACHINE FOR WOODEN SHQE-SOLES.

Specification of Letters Patent.

Patented July 23, 1907.

' Application filed March 7, 1905- serial NO- 248,937-

To all whom it may concern:

Be it known that we, HERMAN Bossn, a citizen of the Empire of Germany, and a resident of Berlin, Augsburgerstrasse 96, Germany, merchant, and WILLIAM SGHOU, a citizen of the Kindgom of Denmark, and a resident of Copenhagen, Peder Skramsgade 3, Denmark merchant, have invented new and useful Improvements in Automatic Groove Cutting Machines for Wooden Shoe-Soles, of which the following is a specification. Our invention relates to a cutting-machine, by means of which it is possible, through a simple but automatic device, to effect a regular cutting of the grooves in such objects as the soles of wooden shoes, in which are secured the leather uppers.

It has for its principal objects the provision of mechanism whereby the sole, as it is rotated, is varied in its angular position so that the cutter will follow the curve of the sole.

One embodiment of our improved cutting-machine is shown in the accompanying drawings, in which Figure 1 is a side elevation; Fig. 2 is a front elevation; and Figs. 3 and 4' are, respectively, a broken top plan view and a broken longitudinal vertical section through the table.

A cutter-spindle is journalecl in a standard or columnframe 1, it consisting of a rigid upper section 2 rotatable I in bearings 3, and a lower portion 5 upon which is mounted a cutter 4, this lower portion being connected to the upper part by means of a suitable ball and socket or other universal joint 6. The section 5 is guided in a vertical plane by means of separated arms or guide members 7 and is forced outwardly from the standard by a spring 8 carried thereby. The cutter-spindle may be rotated from a pulley 9 carried bya suitable shaft 9 projecting from the standard, through a belt 12 leading over guide pulleys 10 to a pulley 11 fast upon the spindle.

Below the cutter-spindle is situated the supporting table for the sole or other work to' be operated upon, it being mounted upon the upper extremity of a vertical shaft 14 journaled in a bracket 15 projecting from the standard. This shaft is movable longitudinally through the bracket and is also rotatable therein, this rotation being effected by means of a pulley 16 turning with the pulley 9 and connected by a belt to a pulley l7 fixed upon a shaft 18 journaled in the lower portion of the standard. Upon this shaft 18 is secured a worm 19 meshing with a worm-wheel 20 which is carried by the shaft 14. The worm-wheel is so attached to the shaft 14 that a free longitudinal movement of the latter is permitted, while these elements are constrained to rotate together.

A lever 21 is fulcrumed upon the bracket 15 and engages the lower end of the shaft 14 in such a manner that the rotation of said shaft is not interfered with. Above the lever 21 another lever 22 is also fulcrumed upon the bracket 15 and is connected to the lower lever by a rod 23. This rod is shown as consisting of two parts having their adjacent ends provided with right and left threads which are connected by means of a I suitably threaded nut 24. By turning this nut the rod may be made longer or shorter.

' To the worm-wheel is attached a bevel-gear 25 which meshes with a similar gear 26 rotatable upon the bracket 15 and having an extended hub to receive a removable cam 27. The cutter end of the lever 22 is provided with a pin-roller or similar element 22 which coacts with a rim of the cam 27.

Upon the table are mounted adjustable heel-holders 28 and 29 fixed upon spindles 30 and 31, respectively, and also holders 32 which engage the front part of the sole and are removably mounted upon angle-levers 33. The heel-holders are movable upon the table by means of their spindles, they being guided in slots in said table. The angle-levers supporting the side-holders are drawn inwardly by means of spiral springs 34 so that, when a sole is placed between them, the holders grasp it.

The lower ends of the levers 33 contact with a cone 35 which is threaded upon the shaft 14 and has a handwheel 36 by which it may be rotated, thus producing movement longitudinally of the shaft. The lower end of a third lever 37 also presses against the cone 35, it be- 1 ing situated between the levers 33 and equidistant therefrom, while its upper arm, which may be forked, is situated between shoulders 38 on the spindle 31 (Fig. 4). The spindle 31 itself is normally forced from the center of the table by means of-a spiral spring 39, which may be assisted by a spring 40 acting upon the lever 37. The levers 33 and 37 are mounted in such a manner that, when the cone is raised along the shaft 14 their upper arms swing inwardly in the direction indicated by the arrows in Figs. 1, 2 and 4. By the movement of the lever 37 the spindle 21, with the holder 29, is displaced toward the center of the table against the tension of the spring 39.

The sole is placed upon the table in such a manner I that its center lies in the axis of rotation thereof. When this table has been adjusted to the proper height, the cutter 4 is brought against the edge of the sole and a driving-belt 41 is moved from a loose pulley 42 turning upon the shaft 9", onto a pulley 43 which is fixed to the pulley 9. This rotates the cutter-spindle and at the same time turns the table through the shaft 18. As the table rotates the cutter is forced, by the pressure of the spring 8, against its spindle into coaction with the edge of the sole and is there held by said spring, while the cam 27, acting through the lever system 21, 22 and 23, varies the height of the table and of the holders so that a groove is cut in the edge of the sole at a uniform distance from its upper surface. The depth of the cut may be regulated by a circular plate 4 rotatable with the cutter, the circumference of this plate sliding over i the edge of the sole or in any other suitable manner.

Soles of different thicknesses may be provided for by turning the nut 24 and thus varying/the height of the table and securing a cut equidistant from the upper surface 01'; all the soles operated upon. To accommodate the machine to soles of different longitudinal curyatures, it is only necessary to provide differently shaped cams for the different soles. To attain the central position of the sole upon the table, the holders 28 and 29 are adjusted by turning their spindles 30 and 31 to bring them into contact with the heel. By rotating the hand-Wheel 36 the cone will simultaneously apply a uniform pressure to all the holders.

the sole in proper vertical position with respect to the cutter, said means comprising a vertically movable shaft con-' to adjust said table.

2. In an automatic groove cutting machine, the combination With the swinging cutter, of the driving spindle, a universal connection between the spindle and the cutter, a guide for the cutter, a spring normally holding the cutter to its work, a table for supporting the work in position to be operated on by the cutter, means on the table for fixing the work with respect thereto, said means comprising holdcrs for engaging the sides of the sole, and a holder for engaging the heel, angle-levers pivoted to the table, and having one arm connected with the holders, and a cone shaped nut engaging the other arms of the angle levers, whereby to actuate the holders, and a vertical shaft connected with the table upon which the nut is threaded.

HERMAN BUSSE. WILLIAM SCI-IOU. Witnesses WoLDnMAn HAUICL, HENRY HAsPnR. 

